campervan

Hello folks, a couple of questions. I have a VW camper with a solar panel c/w Bluesmart 75/15 MPPT controller connected to a SuperB Lithium 90Ah battery with built in BMS. I need to add a mains (240V) charger & am looking at either the Bluesmart IP22 12/15 or the Bluesmart IP65 12/15. Reading through the instruction manual for the IP35 version, I see that a "Test" is carried out prior to charge commencing,:-

The TEST LED will flash as long as a charge pulse does

not increase battery voltage to more than 12,5V resp. 25V.

If the flashing persists during several minutes the battery is

probably damaged (internal short-circuit): disconnect the

charger.

A false rejection may occur if a load is simultaneously

draining a very weak or fully discharged battery during the

test phase: disconnect the load and repeat the test.

Question:-

1) If during the test phase, the solar charger is charging the battery, would the IP65 12/15 charger see the increased battery voltage & assume a fault & fail the test?

2) Is the IP35 version designed to run in parallel with other charging sources? If not, would the IP22 version suffer the same problem?

3) The charger will be permanently hardwired to the to the battery. Depending on circumstances it's highly likely that the charger maybe powered up whilst loads are simultaneously connected, (fridge/lights/diesel heater etc.) these loads may be running during the "test" phase, would this be an issue for either charger in question?

4) If the "test" fails, does the charger lockout until the next power up cycle or does it retry after a period of time?

5) Is there a more suitable charger for the application, it must be Lithium capable & be suitable for permanent installation in a small space, preferably fan-less.

Thanks for any help.

Hi All,

Apologies if these basic questions have been asked/answered many times before!

Converting VW t5.1 Caravelle into a camper (standard alternator).

We are intending to install the charging/power components in our camper in stages, party due to time and partly due to costs. We're keeping our electrical items simple, fridge, water pump, lighting, wifi booster, phone charging (no TV, microwave, kettle, hair straighteners etc).

Phase 2: Solar Panels, SmartSolar MPPT

Phase 3: 240v mains (this is something we may consider in the future, and I've not really researched this yet).

Hopefully we're on the right track, but if there's anything crucial I've missed, or there's something we could install now that is multi functional and would save us time/money further down the road please let me know.

Thank you in advance for any help of advice!

Pam

Hello,

I am in the middle of making an elektrical schematic for on of my camperbuilds. In this build I would like to use an lithium battery.

I am using an Liontron 130Amp battery with build in BMS

Victron Smartsolar 100/20

Victron Multiplus 800VA

Victron BVM 712 Smart

Victron Battery Protect 3 x

Votronic B2B charger

300 watt Solar panel

To protect the LifePo4 battery I am using 3 x an Battery Protect in this scheme.

My question is: is this overkill and if not are they in the correct position?

The Votronic B2B charger wich I am using is not working via an battery protect, because it has a build in safety system and it will cut of charging when the temperature or charging levels are getting to high.

Because I am not using an Victron battery :( I can't use an Victron BMS or Mini BMS or VE-BMS etc.

[image]

Now I found another build online, although this is not with an LiFEPo4 battery they are just using 1 battery protect. Mounted directly on the battery +30, I thought an battery protect could only work 1 way, so either charging or de-charging protection? Does this build on the picture below mounted correctly?

[image]

I am looking forward to an reaction! :)

Thank you, Maarten

Hi All. The scenario is as follows:

We currently have a Cyrix-ct 12/24-230 connected in a Toyota Land Cruiser 79. This Cyrix charges the batteries in a caravan being towed (Via Brad Harrison connectors on caravan A-Frame). This works perfectly.

We now have a second bank of batteries in the back of the Land Crusier (2 x 125Ah). These power fridges in the back of the Land Cruiser.

Can the charging power of the Cyrix be split to charge the Land Cruiser's 2 batteries AND the caravan batteries (2 x 230Ah) simultaneously.... I have Argofet isolators available as well that can be fitted, if this solves the problem...

Thanks

I just bought Gel battery 130 Ah - BAT412121084. In the datasheet it looks like this is the C20 (in German K20) value. My charger requires the C100 (K100) value to be entered. I've read on some places that I can get it by multiplying 130x1.125=146.25 Ah. Is that correct or I can find more accurate source of this value ?

so I think how I want to set it up is.. both the output from the campers converter and the solar into the input of the victron converter.. then the batteries on their port and the campers load on the load port... I think..

But I think the input will be too high...

ultimately I want the BT of the CC to monitor the power consumption and battery charge. how should i hook this up for both boon-docking or powered setup?

Hi I have just purchased an Blue Smart IP22 Charger 30A (3) to use in my camper van. I was wondering what size cables should I install to charge the batteries? One battery is <1m away and 12V 75Ah, the second battery is about 4m away and 12V 100Ah. Also I guess it should be Ok to just ground the negative to the chassis?

Actually everything should work, but I'm not sure about the fused inputs and outputs and the solar panel.

What do you think?

Cheers Mario

[image]

Hi,

I am currently converting a van to a campervan and I am currently designing the electrical system. My estimation for a full day consumption is around 250Ah @12V. I was considering installing 640W of solar panels with 320Ah of battery. But to ease the initial investment I want to be able to initially install only 320W of solar panel and a 160Ah battery.

My requirements are in line with the general requirements for this kind of application, batteries to be charger by solar power, shore power and alternator.

After some research on Victron website I got this list of critical items:

There are contraindications using the Phoenix with the engine running, and with the alternator??

I do not think so, but some told me not to do it.

Thanks for answering.

Hi,

Following a setup I am building for a campervan I have a question regarding the selection of the right MultiPlus for my application. [1]

I am considering the MultiPlus C 12/2000/80-30 and the MultiPlus 12/3000/120-16.

As I only have one LiFePO4 battery 12,8V/160Ah – Smart, can I use a Multiplus 12/3000 as the recommend maximum continuous discharge current for this battery is 160A? Or will be input current be limited to 120A?